diff --git a/esphome/components/epaper_spi/epaper_waveshare_bwr.cpp b/esphome/components/epaper_spi/epaper_waveshare_bwr.cpp
index 004597b72bd..eecb1882613 100644
--- a/esphome/components/epaper_spi/epaper_waveshare_bwr.cpp
+++ b/esphome/components/epaper_spi/epaper_waveshare_bwr.cpp
@@ -20,7 +20,7 @@ static BwrState color_to_bwr(Color color) {
   return BwrState::BWR_BLACK;
 }
 
-// UC8179 3-color display buffer layout:
+// 3-color display buffer layout (UC8179 and UC8151D):
 // - 1 bit per pixel, 8 pixels per byte
 // - Buffer first half: Black/White plane (1=black, 0=white)
 // - Buffer second half: Red plane (1=red, 0=white)
@@ -79,7 +79,7 @@ bool HOT EPaperWaveshareBWR::transfer_data() {
   uint8_t bytes_to_send[MAX_TRANSFER_SIZE];
 
   // Phase 1: send Black/White plane (first half) via command 0x10 (DTM1)
-  // UC8179 DTM1 (0x10): inverted to get 0=black, 1=white
+  // DTM1 (0x10): inverted to get 0=black, 1=white
   if (this->current_data_index_ < half_buffer) {
     if (this->current_data_index_ == 0) {
       this->command(0x10);  // DATA START TRANSMISSION 1 (black channel)
@@ -101,7 +101,7 @@ bool HOT EPaperWaveshareBWR::transfer_data() {
   }
 
   // Phase 2: send Red plane (second half) via command 0x13 (DTM2)
-  // UC8179 DTM2 (0x13): 1=red, 0=white
+  // DTM2 (0x13): 1=red, 0=white; on the UC8151D this relies on the 0x50 value in uc8151.py
   if (this->current_data_index_ < buffer_length) {
     if (this->current_data_index_ == half_buffer) {
       this->command(0x13);  // DATA START TRANSMISSION 2 (red channel)
@@ -127,8 +127,7 @@ bool HOT EPaperWaveshareBWR::transfer_data() {
 }
 
 void EPaperWaveshareBWR::power_on() {
-  this->cmd_data(0x01, {0x07, 0x17, 0x3F, 0x3F});  // POWER SETTING
-  this->command(0x04);                             // POWER ON
+  this->command(0x04);  // POWER ON
 }
 
 void EPaperWaveshareBWR::refresh_screen(bool /*partial*/) {
diff --git a/esphome/components/epaper_spi/epaper_waveshare_bwr.h b/esphome/components/epaper_spi/epaper_waveshare_bwr.h
index d34f05cbb2b..f5cbb5fde47 100644
--- a/esphome/components/epaper_spi/epaper_waveshare_bwr.h
+++ b/esphome/components/epaper_spi/epaper_waveshare_bwr.h
@@ -5,8 +5,8 @@
 namespace esphome::epaper_spi {
 
 /**
- * Waveshare 3-color e-paper displays (UC8179 controller).
- * Supports: 7.5" V2 BWR (EDP_7in5b_V2), 800x480 pixels.
+ * Waveshare 3-color e-paper displays (UC8179 and UC8151D controllers).
+ * Supports: 7.5" V2 BWR (EPD_7in5b_V2), 800x480 pixels; 2.13" B V3 (EPD_2in13b_V3), 104x212 pixels.
  *
  * Color scheme: Black, White, Red (BWR)
  * Buffer layout: 1 bit per pixel, separate planes
@@ -14,8 +14,8 @@ namespace esphome::epaper_spi {
  * - Buffer second half: Red plane (1=red, 0=no red)
  * - Total buffer: width * height / 4 bytes (2 * width * height / 8)
  *
- * The init sequence (INITIALISE state) sends panel configuration only.
- * Power-on (0x01 + 0x04) is sent in the POWER_ON state after data transfer;
+ * The init sequence (INITIALISE state) sends the power and panel configuration.
+ * Power-on (0x04) is sent in the POWER_ON state after data transfer;
  * the state machine then busy-waits before triggering REFRESH_SCREEN (0x12).
  */
 class EPaperWaveshareBWR : public EPaperBase {
diff --git a/esphome/components/epaper_spi/models/uc8151.py b/esphome/components/epaper_spi/models/uc8151.py
new file mode 100644
index 00000000000..49d0d6818b4
--- /dev/null
+++ b/esphome/components/epaper_spi/models/uc8151.py
@@ -0,0 +1,60 @@
+"""Black/white/red e-paper displays using the UltraChip UC8151D controller.
+
+Supported models:
+- uc8151: the controller on its own; dimensions and pins must be configured
+- waveshare-2.13in-bv3: 104x212 pixels (2.13" B V3, EPD_2in13b_V3)
+
+The busy pin of these displays is low while busy, so configure it with ``inverted: true``.
+"""
+
+from typing import Any
+
+import esphome.config_validation as cv
+from esphome.const import CONF_DIMENSIONS
+from esphome.types import ConfigType
+
+from . import EpaperModel
+
+MAX_SOURCES = 160
+MAX_GATES = 296
+
+
+class UC8151(EpaperModel):
+    """EpaperModel class for black/white/red displays using the UC8151D controller."""
+
+    def __init__(self, name: str, **defaults: Any) -> None:
+        super().__init__(name, "EPaperWaveshareBWR", **defaults)
+
+    def validate_config(self, config: ConfigType) -> ConfigType:
+        width, height = self.get_dimensions(config)
+        if width > MAX_SOURCES or height > MAX_GATES:
+            raise cv.Invalid(
+                f"{self.name} supports at most {MAX_SOURCES}x{MAX_GATES} pixels (width x height)",
+                path=[CONF_DIMENSIONS],
+            )
+        return config
+
+    def get_init_sequence(self, config: dict) -> tuple:
+        width, height = self.get_dimensions(config)
+        return (
+            # PANEL SETTING (black/white/red mode, LUT from OTP)
+            (0x00, 0x0F, 0x89),
+            # RESOLUTION SETTING: sources, then gates
+            (0x61, width, height >> 8, height & 0xFF),
+            # VCOM AND DATA INTERVAL SETTING; 0x57, not Waveshare's 0x77, so that 1 in DTM2 is red
+            (0x50, 0x57),
+        )
+
+
+uc8151 = UC8151(
+    "uc8151",
+    data_rate="10MHz",
+    minimum_update_interval="15s",
+    width_multiple=8,
+)
+
+uc8151.extend(
+    "waveshare-2.13in-bv3",
+    width=104,
+    height=212,
+)
diff --git a/esphome/components/epaper_spi/models/waveshare_bwr.py b/esphome/components/epaper_spi/models/waveshare_bwr.py
index e124ea7083b..18c673fbeee 100644
--- a/esphome/components/epaper_spi/models/waveshare_bwr.py
+++ b/esphome/components/epaper_spi/models/waveshare_bwr.py
@@ -1,10 +1,10 @@
 """Waveshare Black/White/Red e-paper displays using UC8179 controller.
 
 Supported models:
-- waveshare-7.5in-bv2-bwr: 800x480 pixels (7.5" BWR display, EDP_7in5b_V2)
+- waveshare-7.5in-bv2-bwr: 800x480 pixels (7.5" BWR display, EPD_7in5b_V2)
 
-These displays use the UC8179 controller. Panel configuration is sent during
-the INITIALISE state. Power-on is handled in the POWER_ON state, after data
+These displays use the UC8179 controller. Power and panel configuration are sent
+during the INITIALISE state. Power-on is handled in the POWER_ON state, after data
 transfer, so the state machine's built-in busy wait covers the power-on delay.
 """
 
@@ -20,8 +20,8 @@ class WaveshareBWR(EpaperModel):
     def get_init_sequence(self, config):
         """Generate initialization sequence for UC8179 BWR displays.
 
-        Panel configuration only — power-on is handled separately in power_on()
-        after data transfer, with the state machine busy-waiting before refresh.
+        Power and panel configuration only — power-on is handled separately in
+        power_on() after data transfer, with the state machine busy-waiting before refresh.
         """
         width, height = self.get_dimensions(config)
         return (
@@ -43,10 +43,12 @@ class WaveshareBWR(EpaperModel):
             (0x60, 0x22),
             # RESOLUTION GATE SETTING
             (0x65, 0x00, 0x00, 0x00, 0x00),
+            # POWER SETTING
+            (0x01, 0x07, 0x17, 0x3F, 0x3F),
         )
 
 
-# Model: Waveshare 7.5" V2 BWR (EDP_7in5b_V2) — 800x480, UC8179 controller
+# Model: Waveshare 7.5" V2 BWR (EPD_7in5b_V2) — 800x480, UC8179 controller
 WaveshareBWR(
     "waveshare-7.5in-bv2-bwr",
     width=800,
diff --git a/tests/component_tests/epaper_spi/test_init.py b/tests/component_tests/epaper_spi/test_init.py
index 644a505bf82..5e9cc6d703a 100644
--- a/tests/component_tests/epaper_spi/test_init.py
+++ b/tests/component_tests/epaper_spi/test_init.py
@@ -143,7 +143,7 @@ def test_all_predefined_models(
 
         # Add dimensions if not provided by model
         if not model.get_default(CONF_WIDTH):
-            config[CONF_DIMENSIONS] = {CONF_HEIGHT: 240, CONF_WIDTH: 320}
+            config[CONF_DIMENSIONS] = {CONF_HEIGHT: 120, CONF_WIDTH: 120}
 
         # Add init sequence if model doesn't provide one
         if model.initsequence is None:
@@ -199,7 +199,7 @@ def test_individual_models(
         config[CONF_DC_PIN] = 21
 
     if not model.get_default(CONF_WIDTH):
-        config[CONF_DIMENSIONS] = {CONF_HEIGHT: 240, CONF_WIDTH: 320}
+        config[CONF_DIMENSIONS] = {CONF_HEIGHT: 120, CONF_WIDTH: 120}
 
     if model.initsequence is None:
         config[CONF_INIT_SEQUENCE] = [[0xA0, 0x01]]
diff --git a/tests/components/epaper_spi/test.esp32-s3-idf.yaml b/tests/components/epaper_spi/test.esp32-s3-idf.yaml
index 144c60dd2ff..d0d5f5a6aab 100644
--- a/tests/components/epaper_spi/test.esp32-s3-idf.yaml
+++ b/tests/components/epaper_spi/test.esp32-s3-idf.yaml
@@ -285,6 +285,28 @@ display:
       it.circle(it.get_width() / 2, it.get_height() / 2, 20, Color::BLACK);
       it.circle(it.get_width() / 2, it.get_height() / 2, 15, Color(255, 0, 0));
 
+  # Waveshare 2.13" V3 B series 3-color e-paper (104x212, BWR, UC8151D)
+  - platform: epaper_spi
+    spi_id: spi_bus
+    model: waveshare-2.13in-bv3
+    cs_pin:
+      allow_other_uses: true
+      number: GPIO5
+    dc_pin:
+      allow_other_uses: true
+      number: GPIO17
+    reset_pin:
+      allow_other_uses: true
+      number: GPIO16
+    busy_pin:
+      allow_other_uses: true
+      number: GPIO4
+      inverted: true
+    lambda: |-
+      it.filled_rectangle(0, 0, it.get_width(), it.get_height(), Color::WHITE);
+      it.circle(it.get_width() / 2, it.get_height() / 2, 20, Color::BLACK);
+      it.circle(it.get_width() / 2, it.get_height() / 2, 15, Color(255, 0, 0));
+
   # Waveshare 2.66" B 3-color e-paper (152x296, BWR, SSD1680)
   - platform: epaper_spi
     spi_id: spi_bus